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Graphing a stored function – Casio ClassPad II fx-CP400 User Manual

Page 98

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Chapter 3: Graph & Table Application

  98

To input this type of
expression:

Do this:

x

equality

1. Tap [Type] - [

x

=Type].

2. Input an expression that includes variable

y

and then press E.

y

inequality

(left side

y

type)

1. Tap [Type], [Inequality], and then tap one of the following:

[

y

>Type], [

y

y

tType], [

y

sType].

2. Input an expression that includes variable

x

and then press E.

x

inequality

(left side

x

type)

1. Tap [Type], [Inequality], and then tap one of the following:

[

x

>Type], [

x

x

tType], [

x

sType].

2. Input an expression that includes variable

y

and then press E.

Shade Type

See “Shading the Region Bounded by Two Expressions” (page 99).

Tip:

You can change the equality/inequality sign of an

x

-type (

x

=,

x

>,

x

<,

x

t,

x

s) or

y

-type (

y

=,

y

>,

y

<,

y

t,

y

s, Shade

Type) expression after you input it. Simply tap the current equality/inequality sign. On the Type dialog box that
appears, select the sign you want and then tap [OK].

Graphing a Stored Function

You can select multiple functions and graph them simultaneously, as long as all of the functions are on the
same sheet. You can turn graphing of each function on or off, and even specify the line style and color to be
used for each function.

u To graph a specified function

1. Tap the tab of the sheet that contains the functions you want to graph to

make it active.

2. Select the check boxes of all the functions you want to graph, and clear the

check boxes of all the functions you do not want to graph.

3. You can tap the current line style and color to specify another style, if you

want.

• See “To specify the graph line style and color” below.

4. Tap $ to graph.

u To specify the graph line style and color

1. Tap the style area next to the function whose line style and

color you want to specify. This displays the Style Settings
dialog box.

Style area